Philip Melanchthon traveled to a colloquy in Hagenau after Philip of Hesse’s bigamy became known and was causing a scandal for the Lutherans. (Luther had actually recommended this bigamy for pastoral reasons—definitely not his finest moment.) The sensitive Melanchthon was so troubled by the scandal that by the time he reached Weimar he had already become so sick that he could not continue the trip. He contracted a bad fever and was bedridden.

Luther personally went to see him and arrived in Weimar on June 23, 1540. He found Melanchthon deathly ill, unrecognizable, and unable to hear or speak. Luther later said in one of his table talks that Melanchthon’s eyes had already dimmed like a dead person’s. After Luther expressed his shock, Matthaeus Ratzeberger, court physician for Duke John Frederick I of Saxony and eyewitness to what happened, says that Luther went to the window in the room and prayed an especially bold and earnest prayer. Luther himself seems to have felt the need to explain the boldness of the prayer afterwards either to everyone in the room or privately to Ratzeberger:

Our Lord God had to stand there and take it from me there, for I threw the sack at his door and rubbed his ears with all the promises to hear and answer prayers that I could recount from Holy Scripture, so that he had to hear and answer me if I was going to trust his promises in other matters too.

Luther then took Philip by the hand and said, “Cheer up, Philip, you are not going to die.” He then gave him a short address.

Philip seemed to regain his breath at this. When Luther ran to get him something to eat, Philip refused it, so Luther threatened him: “Listen here, Philip, here’s how it is: You are going to eat for me or I am going to put you under the ban.”